Electronic device using homomorphic encryption and encrypted data processing method thereof
Number of patents in Portfolio can not be more than 2000
United States of America
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Dec 17, 2024
Grant Date -
Feb 8, 2024
app pub date -
Oct 12, 2023
filing date -
Oct 12, 2023
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Abstract
An electronic device includes a memory storing data from an external source, an application processing unit (APU) transmitting a secret key and public key generation command, an isolated execution environment (IEE) generating a secret key in response to the secret key generation command, generating a public key based on the secret key in response to the public key generation command, and storing the secret key, and a non-volatile memory performing write and read operations depending on a request of the APU. When the data are stored in the memory, the APU transmits a public key request to the IEE and in response the IEE transfers the public key to the APU through a mailbox protocol. The APU generates a ciphertext by performing homomorphic encryption on the data based on an encryption key in the public key, and classifies and stores the public key and the ciphertext in the non-volatile memory.
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